ISO 25131:2025

Overview

ISO 25131:2025 - Hardware for furniture - Strength and durability of hinges and their components - Stays and hinges pivoting on a horizontal axis - defines standardized test methods and parameters to evaluate the mechanical performance of hinges, stays and related components that pivot on a horizontal axis. The standard covers static overload, functional durability and corrosion resistance tests intended to simulate normal use and foreseeable misuse for all fields of application except systems intended for storage functions. Ageing and the influence of heat and humidity are not included (other than corrosion testing).

Key topics and technical requirements

• Scope and applicability: Applies to all hinges, stays and systems pivoting on a horizontal axis and their attachment parts (e.g. mounting plates, screws). Test results apply only to the specific items tested or clearly representative production models.
• Test categories:
  • Overload tests (vertical and horizontal static overload, slam tests)
  • Functional tests (operating forces, durability cycles, sagging assessment, repeated static loads)
  • Corrosion resistance (separate corrosion testing procedures)
• Test conditions and apparatus:
  • Tests are performed in a test frame with deformation ≤ 1 mm under load; wooden flaps are mounted on particleboard unless otherwise specified.
  • Environmental conditioning: tests normally at 15 °C to 27 °C; hygroscopic plastics conditioned at 23 ± 2 °C and 50 ± 5 % RH for seven days.
  • Tolerances: forces ±5 %, velocities ±5 %, masses ±1 %, dimensions ±1 mm, angles ±2°, force positioning ±5 mm.
• Inspection and reporting: Mandatory pre- and post-test inspections for fractures, loosening, deformation, impaired function and loosening of fixings. Annex A requires product information; Annex B provides specific test loads and cycle counts.

Practical applications and intended users

ISO 25131:2025 is used to:

• Support furniture manufacturers and designers in specifying hinge performance for hinged flaps (top-hinged and bottom-hinged).
• Define quality control and acceptance criteria for production batches and supplier verification.
• Guide test laboratories performing standardized strength, durability and corrosion testing.
• Assist procurement and certification bodies in comparing and documenting hinge performance claims.

Typical benefits:

• Comparable, repeatable test results across suppliers
• Clear pass/fail criteria for durability, sagging and operating force performance
• Informed material and design decisions for hinges and stay systems

Related standards

• ISO 9427 (panel density)
• ISO 6270-2 (humidity/condensation exposure)
• ISO 10289 (corrosion testing rating)
• EN 320 (screw withdrawal resistance)

Keywords: ISO 25131:2025, hardware for furniture, hinges pivoting on a horizontal axis, strength and durability testing, stays and hinges, corrosion resistance, furniture hardware testing.